Simulation for the Handling and Stability of Four-Wheel Steering Vehicle Based on Matlab/Simulink
Publication: International Conference on Transportation Engineering 2009
Abstract
Four-wheel steering (4WS) is an advanced vehicle control technique which can improve steering characteristics. Compared with traditional two wheel steering (2WS) vehicles, 4WS vehicle can steer the front wheels and the rear wheels individually when cornering, according to the vehicle motion states such as vehicle speed, yaw velocity and lateral acceleration. Therefore, 4WS can enhance the handling stability and improve the active safety for vehicle. In this paper, the motion characteristics of 4WS vehicle are analyzed. The steering dynamics model of vehicle is established, and the transfer function of deflection angle of mass center to steering angle of 4WS vehicle is deduced. The handling stability of 4WS vehicle is researched by virtue of Matlab/Simulink, Simulation results show that the 4WS vehicle is agile to and consistent with steering input and the transient handling stability is improved distinctly without increasing driver's handling burden.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Analysis (by type)
- Business management
- Continuum mechanics
- Displacement (mechanics)
- Driver behavior
- Dynamic analysis
- Dynamic models
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Highway transportation
- Infrastructure
- Models (by type)
- Motion (dynamics)
- Practice and Profession
- Public administration
- Public health and safety
- Safety
- Solid mechanics
- Structural mechanics
- Traffic engineering
- Transient response
- Transportation engineering
- Vehicles
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